Tuesday, December 24, 2013

It was 2003 since I built my first JDM Microcontroller Programmer. Since that time, I didn't stop programming and building Embedded Systems based on the Microcontroller Microchip PIC 16F84A. I've learned many other Microcontrollers from Microchip and another manufacturers. But I still have the same love for this old Microcontroller and this beautiful programming circuit ( JDM).

I built new Programmers for other Microcontrollers. Recently I searched for a programmer for the Microcontroller PIC18F2220 and I found a software programmer that uses JDM circuit for programming it.

And then I searched about the advanced Microcontroller PIC18F4550 which can be directly connected to the USB port.
The best thing was it can also be programmed by the same JDM circuit.
The only modification I had to do with the circuit is adding a new socket for the new Microcontroller chips.
The Microcontroller chip PIC18F4550 has 40 pins so I had to install an extension to my old JDM circuit because it had no space left.

That`s the way I built this extension. A 40 Pin IC connector on small piece of plastic connected to wire by the conductive ink.

Basically, all the PIC Microcontrollers use the same pins for programming.

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The concept is simple. You can skip this part and start directly with the conversion.

The BLDC motor used here has a stator winding and a Permanent Magnet Rotor. The motor is supplied by 12V DC. But the magnetic field rotation is generated by electronics ( Electronic Commutator ) . As the name implies , the electronics components convert DC into AC which makes the magnetic filed in the stator rotate.

The electronic commutation is achieved by a small IC.

To get the induced current from the motor used a generator , you must remove this IC .

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The Amazon Prime is a special paid service from Amazon that offers good promotions and one-day free shipment for Amazon Shoppers. You can try this service for 30 days. You can cancel you subscription anytime.Shop Amazon - Give the Gift of Amazon Prime

Audible is the audio books website from Amazon. Many Kindle books are sold on Audible. You can try this service for free and get 2 free book. You can cancel you subscription anytime.Shop Amazon - Create an Amazon Baby RegistryIf you have a new baby borne or expecting one, you can create your free baby registry to easily save products and get offers and promotions on baby requirements.